Glass severing and pressing mechanism.



e. E. CLEVELAND.

GLASS SEVERING AND PRESSING MECHANISM.

' APPLICATION FILED Nov. 24, 191s.

1 17 1 ,928 l Patented Feb. v15, 1916 3 SHEETS-SHEET l.

I Il I *l I I mi 1 :IIIIMIIIIILIIIIIIInm! IIIIIIIIIIIV *n-...I- nu EIIIzIiIIIIIIIIIII G, E. CLEVELAND.

GLASS SEVERNG AND PRESSING VMEGHANISM.

APPLICATION FILED nov. 24.'1913.

gezag/5 el e 1 55 '744- 774757/ 5 2.

ATTORNEY G. E". CLEVELAND'.

l GLASS SEVERING AND PRESSING MECHANISM. I APPLICATION FILED NOV. 24. i913. I

1,171,928. P11-ente@ 1191. 15, 19111.

13 SHEETS-SHEET 3.

Anw 2 `N` 64 ill-13;@ 455 11111x-x-:1111gbiel@ UNITED STATESv `BA'TEN'IJ OFFICE.

GEORGE E. CLEVELAND, or EAIRMOIINT, INDIANA, AssIGNon. 'ro-CLEVELAND MACHINE COMPANY, A CORPORATION E INDIANA.

GLASS SEVERNG AND PItESSING' MECHANISM.

To all whom t may conce/111,.

Be it known thatI, GEORGE E. CLEVE- LAND, a citizen of the United States of America, and a resident vof Fairmount, Indiana, have invented certain new and useful Improvements in Glass Severing and Pressingy Mechanisms, ofwhich the following is a specification.

This invention relates Vtocertain improvements in glass presses. 'In a prior Patent, No. 987,671,1`gran'ted to me March 21, 1911, I have showna type of such machine in` which a rotating mold-carrying table .is frictionally driven beneath suitable glass shearing, pressing andk blowing mechanisms, and is temporarily arrested' with the molds-thereon beneath such mecha,- nisms, by means 'of a latch mechanism, .which is actuated from the table rotatingpower and controlled atr times by the movement ofl the pressing plunger, which` in.

' turn is controlled by the rotation of the table. In the presentV case, blowing mechanism as. a part ofI the machine isA dispensedv with, any blowing. of the pressed blank that may be necessarybeing accomplished after such blank is removed from themachine, and the construction is such that upon the actuation of the glass shears, the latch` is .withdrawn from'ffthe. table, which thereupon rotates suiiiciently` tovbringthe. mold with the severed press-plunger, whic, by a valvef` controlled bythe said rotation, is caused todescend to eiiect the pressing.V The'descent Vofthe V plunger. through -a` timing element driven from the.v table power shaft causes the- I plunger to rise, and may also throughlsuch timingelement aga'in actuate the table-latch to permit the table to beagainl put -inroi tation` for anotherk partial revolution.` f

lThe invention also `comprises f certain lnew and useul improvements .inl the construction, arrangement; and combination -of` the' several parts ofwhich" it: i's-com as" will be i hereinafter `moreV fully escribed and claimed.l i

Referring to the accompanying draw'- ings, in which corresponding `parts are -`des'- ignated by correspondin marks of reference Figure l is a side e evation of a ress embodying my invention. Fig. '2 is a ragmental front elevation thereof. Fig. 3 1s Y a4 horizontal section through the base frame.

Specification of Letters Patent.

stantially ass therein beneath a 'wheel 14 by which the shaft,

24,'by which the cross-head 17 will Patented Feb. 15, 1916.

Application filed November 24, 1913. Serial No. 802,740.

Fig. 4 is a .plan view. Fig. 5 is a -fragmentalsectional vview through the pressing head. Fig.6 is a-detail view ofthe actuating mechanism for throwing 'the airvalve to effect a depression .of the plunger. Figs. 7 and 8 are a planand elevation respectively in detail of the shear mechanism.

The various parts arev carried by a subrectangular base trame 1 having supporting` wheels 2, upon which it is mounted for convenience in moving the press to and from the furnace. Upon the upper lsurface of the base' isr the mold' table- 3, which is inthe form of an annulu's,the central opening of table being receive'd'by a circular boss 4 on thetop of `the'base frame, around which boss the table isl rotatable. `Arising from the center of this boss, andl secured thereto, is a vertical hollow standard 5,- while a second vertical standard 6 arises from a corner of the base outside' of the outer periphery of the table. The upper ends of these standards are .threaded andon them is mountedv for vertical movement the press head. This comprisesacasting 7, in the form of a cylinmay bev rotated and thus and lowered.

and the nuts, v the casting raised Upon the head of the, cylinder a suitable valve casin 16 is mounted, containing a reversing va ve, the actuating stem of which is shown at 1 7, and which is adapted to direct fluid pressure (preferablyair) from the pressure supply pipe 18 into either the top -or bottom of the cylinder and to per- -m1t the escape of pressure from the opposite end thereof.

Mounted'wthin the cylinder and projecting through a stufiinglbox 19 on the lower end thereof is a piston rod 20, the latterhaving a cross head 2 1 on the lower end between the x cross-heads by spiral s rings vto I' pressed,\oil the descent ofi the Jistdn-rod.

'Apressplunger 25 adapted, -as willbei hereinafter described, to enter the rnold, is carried by and depends downwardly from the cross head 24 between the standards.

. ,l Guided on the standards and 16 below the plungerycross head' 22, is a lower `cross y' vhead 26, whi

his centrallyapei/v ured tb per.- 'A

mitthefpas'sage ofthef plunger 25,'ther v"thr'ough'in the pressing, the cross head 6 "carrying theheadring 27,- and having at-` tached thereto the vlower ends offfrods' 28,

'tv/high project upwardly seafrontr andy '-"fpassingthrough the ,cross-heady 22, have.\

theirupper-ends kreceived in holes formed in theI bottom fof the casting 7 in which e' holes theyare capable' of vertical movement.

Each of thesefrods has thereon, above the `cross head22, two nuts 29 and 29,'the upper offwhich 29 is counter-bored-to receive the v10W/er' end. of asleeve 30, which projects upi ywa'rdlyfz'md around the rod, while the lower i' 'nut 2 9* receives the vupper endv of a sleeve 31 which' extends downwardly j, Athrough the cross-headv 22,'in which it may slide, and

` around the rod. The rods are threaded "to `permit the adjustment of the nuts thereon, l and the sleeves protectthe; threads against wear. A spiral spring 33'enci'rcles each rod 28 and the uppersleeve 3ft-thereon, being 10- /cated between thelower face of the casting 'Y1-andthe upper nut`29'on the rod. Such springs thus tend to depress the rods28, and with them the crosshead 26. When, however, the piston-rod isA raised, the cross-head 22 lifted thereby, through the nuts 29a lifts the rods and the cross-head 26 to a point suiiciently elevated to permit the positioning of a mold under.` the latter by` the rotation of the table. When, however, the piston rod is depressed, the-rods'28 are released? andthe springs 33 depress the lower cross headand 'seat it on thexnold. The pi'ston rod is vhollow and has at lthe lower end' thereof a tappet valve 34fwhich is adapted to'be actuated to release pressure within the head of the cylinder upon the descent of the piston against undue pressure, thus causing a"compressionfof'the` SPIngSQl as' is fully i f so described in*v my patent thereinbefore re.-

Y ferred to.

It lwill be seen that with the :structure -above described, the. springs 33 constantly tend to depress thehead ring carrying cross head` 24 `(heilig normally restrained therefrom by Huid pressure in,the base of the press cylinder), andv that'sirch head-ring is not seated and .held against .thefhydrostatic pressure vof glassinthe mold, Lcaused by the "plunger, by the pressure which actua-tes the plunger. This is important in reducing the "ingand permits greaterfaccuracy of adjust- #ment'insucl'r pressure.

pressure which isrequired to' ,eiect thefpress- The actuationejof. the v"revfersing rvalye and `cylinder effects a depressie respectively.

theadmissionxof air to the upper part of the rod,releasing'tliehead-ring cross-head which 'seats the head-ring' on the` mold top, and

driven by such shaftthrough a friction coupling, comprising two 'friction disks 38 and' of the piston 39, the former -fast to the gear 36 and the latter feathered' on the shaft 37 and sliding disk` ,by a spring 40. .The outward end .ofithe shaft has keyed thereon a gear wheel 41, driven through suitable reduction gearingl 42A, from a motor ,42. The motor 42l runs` continuously in the use of the. machine, and i .the necessary vpauses of the table' are due' to the slip occurringv inthe friction coupling.y

Theinner Iend of the shaft 37 has keyed'k thereon a gear 43, meshing with gears 44 and 45, mounted on opposite sides thereof, and sleeved on horizontal shafts 46 and 47, re-

spectively. The under side of the table atL the outer lperiphery' thereof isI furtherprovided Wit a series of notches 48, spaced around the table and preferably equal in number-to ,the number .of `mold-receiving bases 49 thereon, and I,so disposed lrelatively in engagement ywith the latch Imechanism hereinafter referred to fa mold base will be loc-ated in the pressing, position below thev plunger 25, a d another base below the shearlng mecha ism, hereinafter referred t0,

4Guided -in a j in the machine basel is a lvertically moving 'thereto that when the alternate notches are' :vertical bearing y 50 formed A latch bolt lnormally thrown up against the underside of the table `and adaptedin the rotation of lthe table through its frictiondrive .to engage the notches 48 therein, and

thus arrest tho/table. j, l

Mounted on the hollow standard 5 andy at such angular lp osit1on-.there-around, as to4 be slightlyin advance vof `the radial line/on which is situated the .press Vplunger 25 f, (the positionfof which determines the v pressing position) is, abracket 52, which' yhas on the upper vf ace-oifthe outer end thereof, a 'stud 52A" and which also serves; as th'e"upper bearing` of* a verticalshaftt53V which projects abovethe bracket. The`.shearing mechanism consists-.of a movable blade'l54iand a fined blade 55,.- `Tlie fixed 'blade isfadjustable aroundA the stud 52A'k and fnay belotked in any Idesiredangular position therearonnd by a sety screw 52n its preterred'po's being to fonejsideof center" and overV the rearslde ,of thefmol' 1 not directly `we@ 'the cenare; ne attenua .e v referaat .1S illus? L iso'.

preference, both its back and front edges so shaped that either can be used as severing edges. The'movablefblade is sleeved on the stud 52A and has a laterally extending crank arm thereon connected by a link 55B, to a crank 55C feathered onthe shaft 53. above the bracket. Thelower end of the shaft 53 has keyed thereon a cross head 545A, either end of which may be 'connected by aflink 54B with -a slide 56 mounted for horizontal in and out movement in the' side ofthe base frame. By changing lthe connection of the link between the opposite ends of the cross head 54A, and by making a corresponding angular adjustment of the fixed knife on the upper end ofthe shaft 53, the knife 54 may be'inade to cut `toward* the front or rear edge of the fixed blade 55, as may be demanded by the article being pressed. f

The outer end ofthe slide 56 has mounted thereon a roller57 which coperates with a cam-way 58 formed on a block 59 carried on the outer end of a. piston-'rod 60, such outer end. of the piston-rod passing through, and

being guided in a bracket (il on the machine base l, such bracket also serving as a guide for the block 59. The piston 'rod is actuated in. onejdirection by suitable fluidLpressure Within aj cylinder 62, supplied vthrough a`I` branch 63 of the pipe 18 and through a suitable valve mechanism G4, the valve mechal,njisin being controlledto admit fluid pressure shearing/of a stream ofglass, that may bel to drive the piston-rod outwardly by means of a pedal '65. to' its normal retractedpositionwhen such pressure iscut oil' andrelieved, by-means of a spring 65. The 'actuation of the rod 56 through/the mechanismfbefore described resultis''in the movement of the movable blade @warmte exea fende, and thus in uw flowing ,olf a puntee {or from any other suitable source of flowing glass, into a mold located-adjacent to the shears. j e

The' piston rod 60 has fixed to it and located therebelow v'a cam .67, which ssituated over the outer'end of a lever 68 pivoted `in the leaseframe, the end of the lever being in turn over an anti-friction. roller69 carried on the lower end of the'latch bolt 51, so that upon the outward movement of the piston rod'to shear theglass, the outer end of the lever 68 will be depressed, depressing the latch bolt7 and disengaging itfrom the s notch of the "tablein which it wies located,

`perr'nitting the lrotation of the table by means of its friction dr1ve, until another notch in `thetable comes above the latch bolt, which,

thefpedal t thistime having beenred `,leased by the operator, will be again projected upwardly. By the rotation ofthe table thus allowed themold which' was loi "tatedbeneath the severing point will be car- `Qried,tlie'refrom to the'pressing point.

The piston-rod is restored Located within the hollow standard 5 is .l

the vertical shaft 7 O, which at its upper end is connected to, and aetuates the reversing 'valve steln,17, such shaft carrying upon its lower. enchand inside of the frame l, opposite .arns 7l and 72, the arm 71 having a roller 73 thereon, and the ar1n'72 a roller 74. Keyed to the inner end of the shaft 46 is the disk 75, carrying a wiping arm 76 angularly adjusted thereon, and adapted in the rotation of the disk to engage the roller 73 of the arm 7l, and inlpart angular movement' to the vertical shaft 70, whereby the reversing valve will be actuated to admit pressure to the head of the presscylinder, and thus depress the plunger. The rotation of the horizontal shaft 4G to effect this is effected by a clutch, comprising two mein- 'bei-s, one of which is the constantly driven gear fl-il, and the other of which, 77, is `thrown by a spring 77 into engagement nates at its upper end in a beveled face im- ,-mediately 4below the mold table, which at points therearound is provided with downwardly extending lugs 8l having beveled faces adapted to ride upon and successively depress the stud 80 on the rotation of the table. These lugs are so arranged that as the table approaches the position in which it will be locked by the latch-bolt with the mold thereon in the pressing position, they will depress "the front end of the .lever 79 and thus lift the rear end thereof awayT from the pin 78. von'tlie clutch-member 77, erinitting the spring 77a to throw the clutch members into engagement wherebyl the shaft 46 will be put in rotation. As soon as a lug 8l moves from over the stud 80, which it does before the mold is in pressing position,

4the rear end ofthe lever 79 will again drop upon the hub of the clutch-member 77, and

pin 78 thereon will, by striking the rear end of the lever, which is beveled for this purpose, be moved laterally., carrying with it the clutch-member 77 and thus disengaging the clutch and arresting the rotation' of the shaft 46 after it shall have made-a complete revolution. During this v'rotation of the shaft the wiper or wipers 76 thereon (which may be of any desired shape and number to give variation in the time of opening of the reversing valve and Vtheextent of such opening) will, by striking thel cam 7 3 upon the arm 7l of the reversing-valve shaft 7 0, throw such reversing-valve to permit air to enter the upper end. of the pressing cylinder,

U as 4the shaft 416 completes its rotation, the y luil "and thus depress the piston rod thereof and eii'ecting the molding of the glass inf-the mold, the mold being at this time stationary in the pressing position.

Attached to and depending from the upper cross head 22 is thevtripper rod S3 passing through the central opening in the table, and situated aboveone end of a lever.y 84, nivoted in the frame base 1, the opposite end of such lever extending overand in proximity to ,one member 85 of a` clutch feathered on the shaft 47, the opposite mem l ber-of which clutch formev the `hub of the .throwninto engagement by a spiral spring gear wheel 45, the, clutch members being 86, and being adapted tobe thrown out of engagement by the pin 87f on the member n 85 running up an incline 'face 88 the lever-,'84, when the latter restsupon the member 85. Upon the descent of the'pist'on rod in' effecting a pressing of glass, the

' tripper S31-irte the beveled end 88 of the lever ,84 away from the pin 87, and. the

clutch formed by .the parte 85 .and 45 is thrown. into engagement, whereby the shat 47' willi'be put Ain-rotation from the constantly driven geary 45.. The Ashaft 47 carries thereon adisk 89 provided with a wiper arm 90 adxgpted invtherotation of the disk to'. engage and actuate the .roller 7 4 on the asr fend of ,the arm 72of'the air-valve shaft 70,'

solthat upon theshaftlv being put into. rotation. as Ybefore stated, it wil,- after an angular movement dependent upon the posiy tion ,'of the'wiper 80 -in-respect to the pin 77 throw the: valve rod shaft toreverse' the air :valve and jdmit air at the lowerend of the cylinder, whereby the piston-rod will-be I i raised and the 'plunger withdrawn trom the mold. The lextent,Y o which it is necessary to rotate the shaftv 7 from its norma-l position before the air valve is reversed ,determines the dwell of the' press plunger in the mold. The shaft 47 further carries l upon its inner end a cam disk 91 adapted;

when' the' shaft shall have in its rotation causedthe .upward movement ofthe press .plunger through the-air mechanism-before of glass may be severed -by the shears, dropdescribed,.to liftvtheinner' end of the lever 68, and to thus', by depressing the outer end@-` .machines 4 of such lever,disemqng'e the latch 51 from lthe notches-48 in the table, thus' releasingv ping inthe mold located'beneathl them and the moldv with the first article therein removedsfrolna-theh'base and given further pletes its rotation, the pn-"S'Z'theren,

.the first wiper arm 76, and thef'transvel" l `ad]ustment `vof the wiperiearp765, there the 4time of the, rst admission of.`r "ressureffi to the top of the cylindersfa-inl;te-'arate/1 ya .v my i,

i hammering, whileby the adustments o f .1 *.tliere'on, the period thereafter haten tional 'throw is given-.to ivalveyan Q -ered Ato vslic'le'fonyia-S vert yprovided 'with a o eran j the Y pressing. operatie "treatment, as by blbwing, treatsrunm'n up the incline 88 on the lever 8 again isengages the clutch-members 45 and the rotation of the shaftvjfisthus arrested. A

Each wiper arm has 'projecting"thererornl transversely thereto ay Wiper linger flu'ili-*jjustable by the set screws 76,Cv and is secured 7'5 on the disk adjustably indifer-entflangular`gpositions. Byl the angular 'adjvustinentoff' thereof, respectively,` may lad`1j1st move ,y thel plunger downwardly wl second ,wiper arm and:-

. 1 he tent of such throw may bevari'erhthe serving to increase the-.pressure du M setting ofv th'ej'glass, as `is'.-'lesi'rablegg the stem' of the reversing 95 fast onv the shaft;l an op link 96 withidne endifo which has ,itsll'wer n cylinder n. casting, 'fand 'w "ch a bracket arm. 9,8`'carr' near the upper en'd there nectedlto the valte slide A struction, the cylinder casting or lowered without disturb" tion between the valve"sha stem. Al toothed 1f() uppenendof the vlv i with Ia similar sectorffs of-fa rock 'shaftlOLf-earie arm 9'8 and ina-'bracket 103,",6'111 casting, the lower endl fles-u shaft. 1.01.1na'y g1 thereby actuating;,thV hand, as 'is desrablewh' Suitable molds f1() I.are jre tained -in`themoldbase`s as before described` heltille fromy the L cha,r'g'{ing;.` to y and `is automatically ,removed last named positionb f'th y ,y f; This.. when the number, of im'oldsvon fthetabl .only half ofthe number Nofthief-'arresti notches, as in this' easdthe eedofgthevlz table, produced fbyfthe rseveringandthe press1n' ,1'mechanisme eonjointly' equalsuthe spacing of the molds. vThis however is not essential, as 'thennoljdj-with the pressed -rj charge thereon mayremain 1n the pressing 13o y ibo * kuat V of fthe holder and on the end of the arm Lit/Lees i position until the table is again put inro- `tation' by the severing mechanism. This is particularly possible when `the angular dise tance between the successive molds is the )same as the angular distance between the locking notches, in such a case a mold will be brought into the severing position as the mold in advance thereof is brought into the pressing position.. 'llo accomplish this operation, it `onlyls necessary to pro vide the proper number of moldsjand remove the camdisk 91. in

Figs. 7 and 8, l have shown in detail certainlimprovements in the construction of the shears.`l- Asthere shown the movable blade 5ft is mounted in a shear holder 103,

y which isslee'vedlon the stud 52', which car- I` which' bears on the 'hub of the holder and the other on the blade 54 at apoint which i' g isapproxiuiiately above the shearing point.

` Intermediate '-ofvits length the spring lies withina notch 106 locked in the 'upper face thereof, whereby the end of the spring is `\1naintained in proper relatmn to Ythe blade.

It'willbeseenlthat by raising or lowering the nut onthe stud, the pressure exerted by the springen the blade may be varied, and i that the spring,

y bearing at its opposite ends, Vbothonfthe-holder adjacent to the pivotal y point, and onlthe blade at approximately the .3 5. ""wbladesfnd insuresA a clean out.

severing point, takes up any wear in the I do ."n'ot in the present application make- -claim toltheconstruction el the` shears, or

the'` mounting thereof, or their relation to the molds 'or 4Vtothe (io-relation.` between the movement of the shears and the mold, as

` the ,sameffcims the subject-matter of my Votherlapplication serially numbered 2&593,

inea Apr., 28,1915.

Having thus described my invention, what I claim and desire to secure by Letters Fati ,1. In a glass pressing device, thecomb'ination with [a frotary table adapted to. re-

able to and from the table, a yiuid pressure cylinder actuating the said plunger, a :triction-drive mechanism constantly tending toV rotate the said table, a latch for the table, means for initially releasing the said latch, means actuated by the initial movement of the table for admitting iiuid pressure to the pressure cylinder tov depress the plunger, timing means actuated by the descent of the plunger for admitting fluid pressure to the said cylinder to raise the plunger and to subsequently again release the table latch.

2. ln a glass pressing device, the combination with a rotary table, and a press mold thereon, of a press plunger coperatinir with said mold, constantly rotating means for the table, a iluid pressure actuator for the'plunger, a valve for controlling the application of power thereto, an actuator for said valve comprising a disk carrying thereon two Wipers, one radially and the other angularly adjustable thereon, and means controlled by the rotation of the-table to drive said disk i from the constantly rotating means for the table.

3. In a glass pressing device, the combination with a rotary mold-carrying table, of a press plunger movable to and from the table, a iiuid pressure cylinder vactuating thesaid plunger, a reversing valve controlling-,the applicition of pressure to theplunger, a rocking valve shaft, wipers adapted to reversely rock the said shaft, a gear driving the said table, a latch for the table, a

source of power, a friction coupling interment ot thetable and ofthe plunger for closing` the clutches, and means yconnected with the Wiper actuated by the descent of the plunger for' releasing the table lat-ch.

In testimony whereof I hereunto aifiirmy signature in the presence of two witnesses.

F. F. PFEIFFER,1 En. Premian. 

